CVE-2020-25756

Description

A buffer overflow vulnerability exists in the mg_get_http_header function in Cesanta Mongoose 6.18 due to a lack of bounds checking. A crafted HTTP header can exploit this bug. NOTE: a committer has stated "this will not happen in practice.

Category

9.8
CVSS
Severity: Critical
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.99% Top 25%
Third-Party Advisory github.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://github.com/cesanta/mongoose/issues/1135 issue tracking third party advisory patch

Frequently Asked Questions

What is the severity of CVE-2020-25756?
CVE-2020-25756 has been scored as a critical severity vulnerability.
How to fix CVE-2020-25756?
To fix CVE-2020-25756, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2020-25756 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2020-25756 is being actively exploited. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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